A Yole is a clinker built boat that was used for fishing particularly in the north of Scotland. The best known of these is the Orkney Yole. They were rigged for sail or used as rowing boats. The Yole is of a Nordic design and closely related in shape to the Shetland Yoal and Sgoth Niseach of the Outer Hebrides.
References
Yole Wikipedia(Text) CC BY-SA